| Currently, press machine being widely used in mechanical manufacturing industry is generally driven by rotary motor and its whole system is bulky, costly and inefficient etc. linear motor technology is a new technology that doesn't need any conversion device. The performance of press machine driven by linear motor can be improved effectively. And it is the development direction of new generation forming equipment.In this paper, one-step, two-step, and three-step force-amplifier press machines are designed respectively according to the design method of series combination of force amplifier, combining the characteristics of linear motor. At the same time, overall structure of the symmetrical layout is applied for the part of device according to the symmetry concept of science and aesthetics. The main research work is as below:(1) The development and research status of the press machine is summarized and the necessity of press machine's innovative design and research is presented.(2) The linear motor technology is analyzed systematically. So the advantage of linear motor "electronic flywheel" energy storage technology, programmable control and high precision can be used fully.(3) Double-position press machine driven by linear servo motor can achieve two-station operation with one servo motor and its economy is good and production efficiency is high.(4) Innovative force amplifier is designed with the method of symmetrical design. The radial load of its head is balanced and the friction loss is reduced significantly, but mechanical property of the press machine is enhanced.(5) Overall study and innovative design is done for self-locking mechanism series combination of force amplifier. Besides, mechanical calculating formula and technical performance curve are given for the staffs in engineering and technical field reference.(6) Theoretical and actual output force calculating formulas is given for all design solutions for related calculating in engineer field reference.Finally, the further study and outlook for the press machine which based on linear motor control are done. |
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